I’m a UK-based reader and as such am still alarmed when I see a British police officer carrying a firearm.

I find that tapping my feet (alternating heels and toes, it looka like i’ve got restless legs) is another way of reducing the sensation of turbulence and the vibrations coming up through my shoes.

What I like about your overall structure, process and design is that it doesn’t really need to have that much in the way of innovative or brand new assets until you actually get on the surface of Mars. Most of what you propose could be set up and executed with readily available assets and technology. There are a few…